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@pleiten gratte lglfa'tent @ittica ROBERT J. CLAY, UF Gli-EENPOIN'I, NEW YRK, iISSlGNOlt TO HIMSELF, JAMES T'. IIUSTED, ETENGER J. BURLING, AND OGRNEIUS CORSON.

Letters Patent vo. 623,4"51, dated April 2, 1867'.

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T0 ALL W'HOM IT MAY CONCERN:

Bc it known that I, ROBERT J. CLAY, of Greenpoint, in the county of Kings, and State of New York, have invented a certain new and useful Improvement on Machines for Burring Wool, Ginning Cotton, or other analogous purposes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part ot' this specification, and in which- Figure I represents a front elevation of a niachineconstructed according to my improvement.

Figure 2, a longitudinal section of the same taken transversely through the feeding rollers; and

Figure 3, a face view on an enlarged scale ot' one ofthe barring blades detached.

Like letters indicate like parts in thc several iigures.

My invention, though more particularly designed to removing the bnrs from woohespecially mestizo burs, which, from their eonvolute and jaggedcharacter, require to be removed unbroken, as otherwise there is great ditliculty in detaching broken particles, is also applicable to ginning cotton or other analogous purposes. It will suiiice here, however, to describe it in its application to burring wool; and the nature of my invention consists in detaching the burs or other obstructions or foreign matter contained in the fibre by means of a gang ofrecip rocating tooth-shaped blades, to catch as it is fed thereto the libre from the bnr, while the latter by suitable devices is afterward separately ejected and prevented fromcorniningling with the wool so cleared. Said invention also consists in a machine of the character described, of a combination with reciprocating saw-shaped blades for det-aching the libro, working through ways or passages which exclude the bnrs, of intermediate rotary bur extraction; also in a taper forni to said reciprocating toothed blades, and in a peculiar formation of the teeth thereof, whereby, while the fibre is withdrawn from the bur, the latter is prevented from being broken.

Referring to the accompanying drawing', A represents the frame of the machine, which may be of any suitable. description. B is or may he a driving-pulley giving motion, by belt C, to a wheel, D, that carries or drives a roller, E, runningacross the front of the machine,rand that by pinion gear a b c on the one .side of the frame fitting into corresponding gear serves to rotate an upper front roller F, soft roller G, and by rollers II II to give motion to an endless apron I for the purpose ot' feeding up the wool and delivering it in a proper 'form to a gang ofrcciproeating blades, J, arranged at a suitable distance apart, and that are formed with teeth on both edges, which projecttransversely to the feed for the purpose of (in the one stroke of the blades) detaching the wool as it is fed from the burs, and in their opposite stroke clearing themselves of the bre, by, say,work ing the wool in their down stroke, through or between ways or passages 'formed by plates al arranged suiliciently close to exclude the burs, and to scrape oit or detach any adhering fibre in the up stroke of the blades; brushes, slides, or other suitable devices being, if necessary, arranged below said passages to sweep off the wool. in case ofl it not dropping from the blades. The blades J may either reciprocate in a straight or curvilinear direction. lhe burs are delivered in between the gang of toothed blades J above the plates d, and may be ejected or drawn out down a delivery-board, K, by ratchet-shaped toothed rollers Ii, or by any other appropriate devices. lIhc sawshaped blades J may be guided on their front faces to prevent the blades from springing or buckling by strips f, which, if desired, may be attached to the blades that are held in a frame, S, to which a reciprocating motion may be given by a crank, g, on the driving-shaft and pitnian L. The rotary bui` extractors or wheels L may be driven by a belt, z', and pulleys M N. For the more effectual performance of the work I make the blades J of a tapering character, being wider above and narrower below, whereby crowding of the bnrs-between the blades is avoided, and their clearance down or on to the edge ot' the delivery-board, for a free and proper action ofthe bur extractor, is secured. Likewise, and as it is all-important in working wool containing mestizo burs, that the latter should not be broken in the wool, the teeth of the blades J are not simply formed sharppointed and to project downwards, but are straightened or shelved off on their outer edges mso as to avoid catching or cutting the burs, substantially as represented in lig. 3,.and which the taper character ofthe blades, especially-in the up stroke, largely contributes toward, It is also desirable that the teeth of the blades should bc sharpened or shelved oli' from their roots to their points on the faces of the blades which lie in front or are next adjacent to the bur cxtractors to still further prevent all liability of the burs being caught or broken.

What I claim as my invention, and desire to secure by Letters Patent, is 1. In machinery for burring Wool, ginning cotton, or other analogous purposes, a combination, with ev suitable feed and bur or seed.l extractors or delivery device, of n gang of reciprocating blades having saw-shaped eeth at their edges for operation relatively to the feed substantially as specified.

2. The combination, in connection with a suitable feed, of aI series of reciprocating blades having teeth on their edges, andl working through ways or passages which pass the fibre but exclude the hure, with a, series of intermediately arranged rotary bur extractora, for operation together as herein set forth.

3. The tooth-shaped blades J made of tamper Yform .in direction of their length,'as described, in combina.- tion with a suitable feed and series of bur ex treetore, essentinllyos and for the purpose, herein specified.

4. In n gung of saw-shaped blades, operating as? described, for. the purp'oses set forth, constructing theteeth of said blades straight or shelving on their outer edges, and sharpened from their roots to their points on their outer or front feces, substantially as shown and described. l. l

i R. J. CLAY. Witnesses:

J. W. CooMBs, G. W. REED. 

